Kia Optima: Inspection - Fuel Pump. Repair procedures - Fuel Delivery System - Engine Control/Fuel System - Kia Optima TF 2011-2020 Service ManualKia Optima: Inspection

[Fuel pump]

1. Turn the ignition switch OFF, and then remove battery (-) cable.
2. Remove the fuel pump assembly.
3. Check motor operation by fuel pump connector (A) connecting power (No.4) and ground (No.5).

Pin No.
Description
1
Fuel sender ground
2
 -
3
Fuel sender signal
4
Fuel pump motor (+)
5
Fuel pump motor ground

[Fuel sender]
1. Turn the ignition switch OFF, and then remove battery (-) cable.
2. Remove the fuel pump assembly.
3. Using an ohmmeter, measure the resistance between terminals 1 and 3 of sender connector (A) at each float level.

Pin No.
Description
1
Fuel sender ground
2
 -
3
Fuel sender signal
4
Fuel pump motor (+)
5
Fuel pump motor ground

4. Also check that the resistance changes smoothly when the float is moved from "E" to "F".

Position
Resistance(Ω)
Capacity (ℓ)
E
198~205
5
Warning lamp
168~172
8.5
 1/2
65~67
37.5
Sender (F)
7~9
68


Fuel Pump. Repair procedures
...

Removal
1. Release the residual pressure in fuel line (Refer to “Release Residual Pressure in Fuel Line” in this group). 2. Remove the fuel pump service cover (A) in the ...

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